Immersive Sounds Mod .18 Added sloshing water when at surface of water.
Also reduced detection of flowing water, must be closer, and must be
more of it for waterfall sound. (fixed bug in 17, added back in music)
Immersive Sounds Mod .19 Added splashes when surfacing and when
submerging. Immersive Sounds Mod .20 Sped up game load time by 20%.
